Heliopan 705839 58mm Linear Polarizer
Though far more popular in Europe than in the American market, Heliopan nevertheless makes exceptional filters for all types of photographic applications. Their product catalog is so broad, in fact, Heliopan is currently the only manufacturer putting so many high-end features on a linear polarizer - the SH-PMC Linear Polarizer.
This is the only filter on the list coated against flare and for extra hardness. The Heliopan SH-PMC Linear Polarizer also has brass rings to protect against binding. Of all the materials to make filter rings out of, brass is considered the most desirable. The SH-PMC Linear Polarizer (like all of Heliopan's photographic screw-on filters) is made with Schott glass for top quality optic performance.
There is no linear polarizer on the market that offers so many features generally reserved for up-market, and more popular, circular polarizers. Heliopan products are not a readily available as other filter brands, but many of their products are worth the wait of a special order; the Heliopan SH-PMC Linear Polarizer is one of those.